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Finding the Fourth Proportional to 72,494.47, 100,042.15 and 40,233.95

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Solution

The fourth proportional to 72,494.47, 100,042.15 and 40,233.95 is: 55,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,494.47 : 100,042.15 = 40,233.95 : x
  2. Step 2: Convert to fraction form
    72,494.47/100,042.15 = 40,233.95/x
  3. Step 3: Cross multiply
    72,494.47x = 100,042.15 × 40,233.95
  4. Step 4: Simplify right side
    72,494.47x = 4,025,090,556.35
  5. Step 5: Solve for x
    x = 4,025,090,556.35/72,494.47
  6. Step 6: Final answer
    x = 55,522.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.